/**
 * @params arg 去除对象中的空对象
 */
function emptyObj<T>(arg: T): T {
    for (const key in arg) {
        if (Object.prototype.hasOwnProperty.call(arg, key)) {
            const element: any = arg[key];
            if (!element) {
                delete arg[key];
            }
        }
    }
    return arg;
}
/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
function parseTime(time, cFormat?: any) {
    let time_str = '';
    if (arguments.length === 0) {
        return null;
    }
    if (time_str.indexOf('01-01-01') > -1) {
        return '-';
    }
    const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}';
    let date;
    if (typeof time === 'object') {
        date = time;
    } else {
        if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
            time = parseInt(time);
        }
        if (typeof time === 'number' && time.toString().length === 10) {
            time = time * 1000;
        }
        date = new Date(time);
    }
    const formatObj = {
        y: date.getFullYear(),
        m: date.getMonth() + 1,
        d: date.getDate(),
        h: date.getHours(),
        i: date.getMinutes(),
        s: date.getSeconds(),
        a: date.getDay(),
    };
    time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
        const value = formatObj[key];
        // Note: getDay() returns 0 on Sunday
        if (key === 'a') {
            return ['日', '一', '二', '三', '四', '五', '六'][value];
        }
        return value.toString().padStart(2, '0');
    });

    return time_str;
}
/**
 * @param {Array} filterVal
 * @param {Object} jsonData
 * @returns {string}
 */
function formatJson(filterVal, jsonData) {
    return jsonData.map((v) =>
        filterVal.map((j) => {
            if (j === 'timestamp') {
                return parseTime(v[j]);
            } else {
                return v[j];
            }
        })
    );
}

export { emptyObj, parseTime, formatJson };
